Car-wheel.



PATENTED JULY 21, 1903.-

H. BACON.

GAR WHEEL.

APPLICATION FILED 001.30, 1902.

N0 MODEL.

H mm I MM L m UNITED STATES Patented July 21, 1903.

PATENT OFFICE.

HERBERT BACON, OF BOSTON,VMASSAOHUSETTS, ASSIGNOR OF ONE-HALF TO PElROEJ. GRACE, OF BOSTON, MASSACHUSETTS.

CAR-WHEEL.

SPECIFICATION forming part of Letters Patent N0. 734,113, dated July 21,1903. Application filed October 30, 1902. Serial No. 129,390. (Nomodel.)

To all whom it may concern:

Be it known that I, HERBERT BACON, a citizen of the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,have invented an Improvement in Oar-Wheels, tion, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention has for its object the production of a novel car-wheelwhereby the noise of cars running on elevated structures may be greatlylessened or reduced to the minimum.

'In accordance with my invention I have damped the vibrations of themetal of the body of the wheel by, as herein shown, packin g into spacesor pockets at the face of the metallic wheel between the usual radialribs or spokes a fibrous material, preferably oakum, flax, cotton, orwool. Preferably this fibrous material, of whatever nature, maybe cutmore or less short and mixed with a suitable binder or substance thatwill not deteriorate rapidly or melt or become liquid by any heat towhich the wheel is subjected in use on the track, said binder holdingthe fibrous material in place in the pockets of the wheel between thespokes and in substantially the condition in which it was applied to thewheel.

Figure 1 in side elevation shows a car-wheel embodying myinvention inone good and simple form, part of the wheel being broken out; and Fig. 2is a section through the Wheel.

The hub or body A, having spokes A to leave between them spaces orpockets, and the circular extension B, surrounded by a steel tire C, areand may be of any usual shape. In the spaces or pockets between thespokes A, 1 ram or force what I have desig- 4 of which the followingdescrip nated as a damper, it consisting of fibrous material-such, forinstance, as oakum, flax, cotton, or woolpreferably cut up in shortlengths and having incorporated with it a binder, which may be of flourand glue mixed to a paste. The material comprising the damper whenincorporated by pressure or otherwise into the spaces or pockets of theA wheel may be held therein by the application to the sides of the wheelofretaining-plates a 1), preferably of nonmetallic material such,forinstance, as so-called hard-fiber or paper-board-the retaining-platesbeing held in position byany usual or suitable bolts 0.

I have found in practice that the sonority of a wheel packed with adamper such as described is in a very great measure destroyed and thatwith sucha wheel the terribly-objectionable noise made by cars runningon an elevatedstructure is reduced to a minimum, and also the fibrousmaterial packed as described in thespaces or pockets of the wheel willstand without deterioration any heat to which the wheel in practice willbe subjected.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s

pockets, and having connected therewith nonmetallic retaining-plates,and fibrous material packed in said spaces or pockets behind saidplates.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HERBERT BACON.

Witnesses:

GEo. W. GREGORY, EDITH M. STODDARD.

A car-wheel presenting at its face spaces or

